get an proxy and out it to proxy.txt

getprox.sh

#!/bin/bash

# Outpul file (Default: proxy.txt)
out="proxy.txt"

# Sources
source=("https://api.proxyscrape.com/?request=displayproxies&proxytype=http" "https://www.proxy-list.download/api/v1/get?type=http" "https://raw.githubusercontent.com/TheSpeedX/SOCKS-List/master/http.txt" "https://api.openproxylist.xyz/http.txt")


getprox(){
  for i in "${source[@]}"; do
    curl -sLk "${i}" >> proxy.txt
  done
  # Check for Dupes And Redirect it to same file in Legal Method without using Variables
  printf '%s' "$(awk '!seen[$0]++' proxy.txt)" > proxy.txt
  # Check if Succeed and Proxy has Content
  if grep -q '[^[:space:]]' proxy.txt; then
    echo "success!!"
    exit 0
  else
    echo "Failed, for some reason."
    exit 1
  fi
}


while getopts ":o:" opt; do
  case "${opt}" in
    o)  output="${OPTARG}" ;;
  esac
done

getprox